Download XPETS Module 2 Summary and User`s Manual

TopDownIntersection.m
• As the pin approaches a horizontal orientation in the actual
system, the triangle intersection method approaches massive
uncertainty (think about the intersection of two near-horizontal
planes)
• The top down method addresses this issue by examining the
intersection of the XY vector components, and then examining
where these projected intersections actually lie in the 3-space
• The thresholds are:
– Normalized length: are the linear solutions the same length as the
pin’s true length (pebble diameter)?
– Metric spatial similarity: are there consistent solutions in 3-space?
• This method returns more possible results than the triangle
intersection method (see next slide)
UCB Nuclear Engineering
Thermal Hydraulics Lab
XPETS Module 2
Summary and User’s Manual
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